Dump-car.



G. A. RAKOWSKY.

DUMP OAR.

'APILIOATION FILED DEG-18, 190a.

Patented Oct. 18, 1910.

3 SHEETS-SHEET, 1.

' WITNESSES: WM

. ATTORNEYS 1n: NORRIS PETERS cm. WASHINGTON, n. c.

G. A. RAKOWSKY.

DUMP GAR.

APPLICATION FILED DBO.13,'1909.

Patented Oct. 18,1910.

3 SHEETS-SHEET 2.

IN VENTOR 6W5 ra /7. FHA 0W5 y G. A. RAKOWSKY.

DUMP 0 111. APPLIUATION FILE-DDRO. 13, 1909.

Patented Oct. 18,1910.

3 SHEETS-SHEET 3.

WITNESSES 1H: NORRIS PETERS co v/Asumofun, n. c.

UNITE STATES PATENT UFFIQE.

GUSTAV A. RAKOWSKY, OF DULUTH, MINNESOTA, ASSIG-NOR TO AUTOMATIC UNLOAD- ING- CAR 00., OF DULUTH, MINNESOTA, A CORPORATION OF MINNESOTA.

DUMP-CAR.

973,210. Specification of Letters Patent.

Patented Oct. 18, 1910. Application filed December 13, 1909. Serial No. 532,749.

To all whom it may concern:

Be it known that I, GUsTAv A. RAKOW- SKY, of Duluth, St. Louis county, Minnesota, have invented certain new and useful Improvements in Dump-Cars, of which the heads 11 and the bolts 10 toward one so following is a specification. another when the levers 16 are oscillated.

My invention relates to cars for handling The outer ends of the bolts 10 are beveled ore, and particularly to the locking devices as shown and are adapted to slip into socktherefor and is designed as an improvement ets 18 provided in castings 19, which are over the device for the same purpose shown secured to the side walls of the bucket 5. and described in my application for United Links 20 are pivotally connected with levers States Patent, No. 508,493, filed July 19th, 16 and with a rod 21 which extends there- 1909. from.

My invention consists generally in various The bucket has a flange 23, pivotally conconstructions and combinations, all as herenected with a piston rod 24, which has a inafter described and particularly pointed slotted connection 25 with a piston 26. A out in the claims. trip lever 27 is pivoted at 28 and connected In the accompanying drawings forming a with the end of the operating rod 21, so that part of this specification, Figure 1 is a side when the trip lever is moved upward the elevation of a car with my improved lockoperating rod will be actuated to pull the ing device applied thereto, Fig. 2 is an inlevers 16 to the position indicated in Fig. verted plan view, showing the locking mech- 3, and withdraw the bolts 10 from the anism in its locking position, Fig. 3 is a sockets 18. The piston 26 has a cylinder 29 similar view illustrating the locking bolts and a tubular guide 30, on which is mountwithdrawn to allow the buckets to dump, ed a casting 31. The castin 31 has a seat so Fig. 4 is a side view of the locking mecha- 32 formed thereon, with which one end of nism illustrating the manner of mounting it the trip lever 27 contacts. The piston will on the. walls of the buckets, Fig. 5 is a dehave a limited movement independently of tail view illustrating the connection between the rod 24 and the trip lever will have a limthe locking mechanism and the operating ited initial movement to trip the locking piston, Fig. 6 is a view at right angles submechanism before the power is applied to stantially to the View of Fig. 5. actuate the buckets. This initial movement In the drawing, 2 represents the lower may be two or more inches or less if desired, side sills of the car, 3 the upper side sills according to the stroke necessary to trip the and 4 and 5 the buckets having trunnions 6 locking mechanlsm. As soon as the fluld on the side walls 3. These buckets are adapted to tilt toward one another in the manner described in my application above referred to and have open inner ends through which the ore is discharged into the pocket beneath. These buckets tilt by gravity and to lock them in their elevated position I prefer to provide the mechanism which I will now describe in detail.

7 represents castings secured to the walls vided on the castings 19 to contact with the of the bucket 4 and having brackets 8 proends of the bolts and lnsure the automatic vided with transverse sockets 9 in which relocking of the buckets. bolts 10 are slidable. The inner ends of This mechanism I have found to be simthese bolts are provided with heads 11 and pie and inexpensive in construction and parare movable back and forth in guides 12, ticularly adapted for dumping cars of this secured to the bottom of the bucket. These type, as it is protected by the bottom walls bolts, there being one on each side of the of the buckets from 1I1JUIY and at the same bucket, are normally held in their projected time is easily accessible position by means of springs 13, provided I claim as my invention: between the heads 11 and guides 14, also 1.. The eomlnnation, with a car frame, of

mounted on the bottom of the buckets. The heads 11 have lugs 15 thereon and levers 16 are pivoted at 17 on the guides 12 and are adapted to engage the lugs 15 and force the pressure is relieved in the cylinder, the springs 13 will return the levers l6 and bolts 10 to their normal position and when the buckets are dumped and are lifted again to their loading position, the casting 19 will 95 contact with the beveled ends of the bolts 10 and press them inwardly a suificient distance to allow the bolts to snap into the sockets 18. Beveled surfaces are preferably protilting buckets 'journaled therein and arranged to tilt inwardly to discharge their load, a locking mechanism provided at the inner ends of said buckets, said locking mechanism including transversely slidable bolts and sockets therefor, and a fluid pres sure controlled mechanism for tripping during its initial movement said locking mech- ZLIHSIIL 2. The combination with a car frame, of tilting buckets journaled therein and arranged to tilt inwardly to discharge their load, a locking mechanism provided at the inner ends of said buckets and including transversely slidable spring pressed bolts and sockets therefor mounted on said buckets, pivoted levers arranged to engage said bolts and draw them inwardly against the tension of their springs and a fluid pressure controlled mechanism for actuating said levers, substantially as described.

3. The combination, with a car frame, of

tilting buckets journaled therein and arranged to tilt inwardly to discharge their load, a locking mechanism secured to the bottom of one of said buckets and including transversely slidable bolts arranged to enter sockets provided in the outer walls of the other bucket, and a fluid pressure controlled mechanism for retracting said bolts and releasing said buckets one from the other, substantially as described.

4:. The combination, with a car frame, of tilting buckets journaled therein and arranged to tilt inwardly to discharge their load, a locking mechanism secured to the bottom of one of said buckets near its open end, said mechanism including transversely slidable spring bolts adapted to enter sockets provided in the walls of the other bucket and thereby lock the buckets together, oscillating levers arranged to engage said bolts and draw them inwardly, and a fluid pressure controlled mechanism operatively connected with said levers, for the purpose specified.

5. The combination, with a car frame, of tilting buckets mounted therein, a locking mechanism provided at the abutting inner ends of said buckets, said locking mechanism including transversely sliding bolts, a rod operatively connected with said bolts for drawing them inwardly when said rod is actuated, a fluid pressure cylinder and piston therefor, and a trip lever connected with said actuating rod and in the path of said piston and adapted to be operated by said piston during its initial movement.

6. In a dump car the combination, with a frame, of tilting buckets journaled therein and arranged to tilt inwardly toward one another to discharge their load, a locking mechanism provided at the meeting ends of said buckets, said locking mechanism being secured to the bottom of one bucket and having means sliding transversely with respect to its bucket to engage and interlock with the other bucket and means for tripping said locking mechanism to release said buckets.

7. The combination, in a dump car with a frame, of tilting buckets journaled therein and arranged to tilt inwardly toward one another to discharge their load, a locking mechanism secured to the bottom of one of said buckets near its inner end and having means to engage and interlock with the other bucket to hold them in their loading position, said locking means sliding in a plane parallel substantially with the plane of the bucket bot-tom whereto it is secured and transversely thereof, and means for tripping said locking mechanism to release said buckets. V

8. The combination, in a dump car. with a frame, of tilting buckets journaled therein and arranged to swing inwardly toward one another to discharge their load, a locking mechanism secured to the bottom of one of said buckets near its inner end and including means adapted to interlock with the other bucket and hold both of them in their loading position, and a fluid pressure controlled mechanism for tripping said locking means, substantially as described.

9. The combination, in a dump car with a frame, of tilting buckets journaled therein and arranged to swing inwardly toward one another to discharge their load, a locking mechanism secured to the bottom of one of said buckets near its inner end and including means adapted to interlock with the other bucket and hold them in their loading position, a fluid pressure controlled mechanism for tilting said buckets and means operatively connecting said fluid pressure controlled mechanism with said locking means for tripping said locking means during the initial movement of said fluid pressure controlled mechanism, and before force is applied to tilt said buckets.

10. The combinat on, with a car frame, of tilting buckets journaled therein and arranged to tilt inwardly to discharge their load, a locking mechanism provided at the inner endsof said buckets, said mechanism including a transversely movable means and sockets therefor, and a fluid pressure controlled mechanism for tripping said locking mechanism.

11. The combination, with a car frame, of tilting buckets journaled therein and arranged to tilt inwardly to discharge their load, a locking mechanism provided at the inner ends of said buckets, said mechanism including transversely slidable bolts and sockets therefor, and means for moving said bolts lengthwise to release said buckets.

12. The combination, with a car frame, of tilting buckets journaled therein and arby one of said buckets and adapted to enter sockets provided in the other bucket and thereby normally locking them in a horizon- 15 tal position, and means for retracting said locking means to release said buckets and allow them to tilt to a dumping position.

In Witness whereof, I have hereunto set my hand this 8th day of December 1909.

GUSTAV A. RAKOWSKY. Witnesses J. A. P. NEAL, S. B. IRVINE. 

